|Imaging in shot-geophone space|
Exploding-reflector imaging will be replaced
by a broader imaging concept,
A new equation called the
double-square-root (DSR) equation will be developed
to implement survey-sinking imaging.
The function of the DSR equation
is to downward continue an entire seismic survey,
not just the geophones but also the shots.
Peek ahead at equation (9.13)
and you will see an equation with two square roots.
One represents the cosine of the wave
The other represents the
angle at the shot.
One cosine is expressed in terms of , the Fourier component
along the geophone axis of the data volume in -space.
The other cosine, with , is the Fourier component
along the shot axis.